FWIW, you will notice that there is a high value resistor shunting the crystal in the 10811. The reason for this is to drain off DC charge caused by cosmic rays hitting the crystal, according to the designers.
Rick Karlquist N6RK On Sat 13/11/10 2:48 PM , "iov...@inwind.it" wrote: In the very recent days it has been discovered a previously unknown feature of our galaxy, that is the presence of two giant bubbles which appear to be gamma-ray sources. See http://www.nasa.gov/mission_pages/GLAST/news/new-structure.html [1]">http://www.nasa.gov/mission_pages/GLAST/news/new-structure.html After reading this, I have revieved some old data of mine, which shoved that the noise in a long term temperature measurement is higher when my observing site is in view of that structure. Now I'm rather convinced that there could be a correlation between my observations and the above mentioned new findings, and I believe that the noise is generated by the measuring setup in response to something linked to the bubbles. Hence I'm wondering if that stimulus could also affect the jitter in high performance oscillators. More precisely, I would ask time-nuts whether any sidereal periodicities have ever been noticed in jitter measurements. Thanks, Antonio I8IOV _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts [2] and follow the instructions there. Links: ------ [1] http://www.nasa.gov/mission_pages/GLAST/news/new-structure.html [2] http://webmail.sonic.net/parse.php?redirect=https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.